html,body{
    margin: 0;
    padding: 0;
}

body{
    background: #FFCC00;
    padding-top: 25px;
    padding-left: 250px;
    padding-right: 250px;
}


.cover-box {
    display: flex;
  }
  
.cover-left {
    width: 650px;
    height: 650px;
    overflow: hidden;
    margin-right: 20px;
}

.cover-right {
    display: flex;
    flex-direction: column;
    align-items: center;
}
  
.img-preview {
    width: 200px;
    height: 140px;
    background-color: #ccc;
    margin-bottom: 20px;
    overflow: hidden;
}